@testset "650.2-keys-keyboard.jl" begin
    for (i, j) in
        zip([3, 480, 81, 758, 484, 656, 537, 844, 260, 361, 778, 638, 905, 619, 9],
            [3, 18, 12, 381, 26, 49, 182, 215, 22, 38, 391, 42, 186, 619, 6])
        @test min_steps650(i) == j
    end
end
